Der Sommer und Herbst 2003 aus phänologischer Sicht | Summer and autumn 2003 from a phenological point of view

2004 ◽  
Vol 155 (5) ◽  
pp. 142-145 ◽  
Author(s):  
Claudio Defila
Keyword(s):  
Time Series ◽  
New Record ◽  
Point Of View ◽  
Late Spring ◽  
Mean Deviation ◽  
Leaf Shedding ◽  
The Mean ◽  
Very High ◽  
Selection Of

The record-breaking heatwave of 2003 also had an impact on the vegetation in Switzerland. To examine its influences seven phenological late spring and summer phases were evaluated together with six phases in the autumn from a selection of stations. 30% of the 122 chosen phenological time series in late spring and summer phases set a new record (earliest arrival). The proportion of very early arrivals is very high and the mean deviation from the norm is between 10 and 20 days. The situation was less extreme in autumn, where 20% of the 103 time series chosen set a new record. The majority of the phenological arrivals were found in the class «normal» but the class«very early» is still well represented. The mean precocity lies between five and twenty days. As far as the leaf shedding of the beech is concerned, there was even a slight delay of around six days. The evaluation serves to show that the heatwave of 2003 strongly influenced the phenological events of summer and spring.

scholarly journals Active tectonics of the onshore Hengchun Fault using UAS DTM combined with ALOS PS-InSAR time series (Southern Taiwan)

2017 ◽  
Author(s):  
Benoit Deffontaines ◽  
Kuo-Jen Chang ◽  
Johann Champenois ◽  
Kuan-Chuan Lin ◽  
Chyi-Tyi Lee ◽  
...  
Keyword(s):  
Time Series ◽  
Active Faults ◽  
Active Tectonics ◽  
Accretionary Prism ◽  
Point Of View ◽  
Gis Mapping ◽  
Geological Maps ◽  
Southern Taiwan ◽  
Very High ◽  
Chichi Earthquake

Abstract. Geometry, characterization and quantification of active faults are major concern in Taiwan, especially following the major Chichi earthquake of September 21st, 1999. Among the targets that still remain poorly known in terms of active tectonics, are the Hengchun and Kenting faults (Southern Taiwan). From the geodynamic point of view, the latter affects the outcropping top of the Manila accretionary prism of the Manila subduction zone that runs from Luzon (N. Philippines) to Taiwan. In order to settle the location, characterization and quantification of the Hengchun fault, we needed to up-date the Chinese Petroleum Corporation (CPC, 1993) and Central Geological Survey (Sung, 1991) existing geological maps using GIS mapping and photo-interpretation of both UAS's acquisition : 1). the very high precision (

scholarly journals The effect of red fatigue on the white equation

1921 ◽  
Vol 92 (646) ◽  
pp. 232-234
Keyword(s):  
Focal Length ◽  
Green Light ◽  
Stray Light ◽  
Normal Equation ◽  
Mean Deviation ◽  
Light Path ◽  
Parallel Beam ◽  
Similar Principle ◽  
The Mean ◽  
Selection Of

The white equation, that is the amount of pure spectral red, green, and violet, required to match a simple white, is of fundamental theoretical importance. The apparatus used in these experiments is of similar principle to that of Abney, namely, the selection of portions of the spectrum by slits and their re-combination on a white surface by means of a lens, but with several improvements suggested by Captain Fulton. The source of light is a “Pointolite” lamp of 1000 c. p. The light is focussed on the slit of a collimator, from which it emerges in a parallel beam. It is then dispersed by a compound prism of the Amici type. A lens placed close to the prism focusses the spectrum on the slits, the light being reflected by a mirror placed in the path. A second lens is constructed so as to take the whole spectrum, portions of which are isolated by means of slits. The focal length of the lens is arranged so that an image of the last surface of the prism is projected on a screen, the colour being dependent on the portion or portions of the spectrum isolated by the slits. In order to obtain a long light-path, the light is again reflected by a second mirror before reaching the screen. The intensity of a comparison patch of white light is regulated by an adjustable diaphragm placed in the path of light. The apparatus is used in a dark room free from stray light. The three lights used in these experiments were a red of λ 6670-λ 6770 Å., a green of λ 5144-λ 5156 Å., and a violet of λ4250—λ 4267Å. In making the equation, the red and violet slits are kept unaltered, the equation being made by closing or opening the slit, allowing green light to pass. The size f the portion of spectrum in the green for the normal equation is given above, and corresponds to thirteen scale divisions. The equation is very easy to make, the mean deviation being very small.

scholarly journals Measurement and Comparison of Bracket Transfer Accuracy With Different Indirect Bonding Techniques: An In Vitro Study

2021 ◽  
pp. 030157422110116
Author(s):  
Sonam Rastogi ◽  
Manish Goyal ◽  
Mukesh Kumar ◽  
Kalpit Shitalkumar Shaha ◽  
Ekta Yadav ◽  
...  
Keyword(s):  
In Vitro Study ◽  
Working Models ◽  
Indirect Bonding ◽  
Axis Position ◽  
The Mean ◽  
Mean Differences ◽  
Transfer Accuracy ◽  
Very High ◽  
Selection Of

Objective: To measure and compare bracket transfer accuracy of 3 indirect bonding (IDB) techniques. Material and Methods: Three IDB techniques were studied using polyvinyl siloxane (PVS) putty, vacuum-form (VF), and glue gun (GG). A total of 120 orthodontic stone models were fabricated with die stone, out of which bonding was done on 60 working models and transferred to other 60 patient models. One quadrant was selected for each technique. Digital photography was used to measure the mesiodistal ( X-axis), occlusogingival ( Y-axis), and faciolingual ( Z-axis) position of each bracket on the working and patient models. Results: All the 3 IDB techniques have a very good bracket transfer accuracy. On comparing individual planes, greatest accuracy was seen in GG on X-axis, VF on Y-axis, and VF/PVS on Z-axis. Points A and B were compared for bracket rotation and the mean differences were insignificant indicating that there was no significant amount of rotation in 3 IDB techniques. Conclusions: We can say that all 3 IDB techniques had a very high bracket transfer accuracy. Out of the 3 IDB techniques VF was the most accurate, whereas PVS was the least accurate technique. The selection of technique should be based on tray cost and fabrication time.

scholarly journals Adaptation Parameters of Time Series Models for Forecasting

2021 ◽  
Vol 2096 (1) ◽  
pp. 012050
Author(s):  
S I Klevtsov ◽  
A V Maksimov
Keyword(s):  
Time Series ◽  
Second Order ◽  
Point Of View ◽  
Prediction Intervals ◽  
Time Series Models ◽  
Technical Parameters ◽  
Polynomial Models ◽  
Over Time ◽  
Selection Of

Abstract Prospects for using time series to predict changes in technical parameters in real time are considered. The task is to assess the trend dynamics of the parameter. Adaptive polynomial models of the first and second order, based on the method of multiple exponential smoothing, were selected for forecasting. The models have been modified to adapt to the peculiarities of the computing process in the microcontroller. The initial data, the acceleration values in three axes, were obtained using a three-axis accelerometer installed on the vehicle. Comparison of the forecasting results showed that the second-order adaptive polynomial model is generally more preferable from the point of view of the reduced error. Both models can be used to estimate the change in a parameter for an arbitrary number of prediction intervals. The efficiency of using the models for the forecasting problem largely depends on the determination of the adaptation parameters, such as the smoothing constant and the initial estimates of the coefficients of the time series model. The paper considers the features of the behavior of the models and defines the rules for the selection of adaptation parameters depending on the nature of the change in the technical parameter over time.

scholarly journals Genetic control of silvicultural traits in Balfourodendron riedelianum (ENGL.) ENGL.

2019 ◽  
Vol 68 (1) ◽  
pp. 73-78 ◽  
Author(s):  
B.I. Aguiar ◽  
M.L.M. Freitas ◽  
Y.R. Tavares ◽  
E.V. Tambarussi ◽  
B. Zanatto ◽  
...  
Keyword(s):  
Genetic Variation ◽  
Genetic Conservation ◽  
Stem Height ◽  
Breeding Programs ◽  
Stem Straightness ◽  
Genotypic And Phenotypic Correlations ◽  
Population Improvement ◽  
The Mean ◽  
Very High ◽  
Selection Of

Abstract The Atlantic Forest has very high levels of biodiversity and is considered one of the most important and threatened biomes in the world. Balfourodendron riedelianum is one of the forest’s characteristic tree species that is currently under considered endangered due to timber extraction and forest fragmentation. With the goal of generating information that may contribute to the genetic conservation of B. riedelianum, genetic parameters are estimated for quantitative traits important for silviculture in a provenance and progeny test located in the Experimental Station of Luiz Antônio, São Paulo State, Brazil. The test was established in 1986 and consists of three provenances, from which open-pollinated seeds from 19 seed trees were collected. The following traits were evaluated at 32 years of age: diameter at breast height (DBH), total height (H), stem height (SH), stem straightness (SS), and forking (FOR). The estimates were carried out using the REML/BLUP method. Significant genetic variation among progenies was detected for all traits (except SH) and between provenances for DBH. The coefficient of individual genetic variation (CVgi) ranged from 2.5 to 9.5 %. The mean heritability among progeny ( $h_f^2$ ) was substantial for DBH (0.44) and FOR (0.36), enabling the selection of families with the highest DBH and lowest FOR for population improvement. Genotypic and phenotypic correlations among traits were also found. We conclude that there is genetic variability in the population that can be exploited in future breeding programs and for the genetic conservation of the species.

A stochastic study of floods in Canada: truncation level by region

1991 ◽  
Vol 18 (2) ◽  
pp. 328-330
Author(s):  
Daniel Caissie ◽  
Nassir El-Jabi
Keyword(s):  
Regression Analysis ◽  
Flood Frequency ◽  
Point Of View ◽  
Flood Frequency Analysis ◽  
Truncation Level ◽  
Partial Duration Series ◽  
Practical Point ◽  
The Mean ◽  
Physiographic Parameters ◽  
Selection Of

The main problem in applying a partial duration series model in flood frequency analysis lies in the selection of the truncation level. From a practical point of view, it is important to have a simple and effective way of selecting this level. A truncation level study was conducted on hydrometric stations across Canada and regional equations were developed for estimating the truncation level using regression analysis. The homogeneous region was selected based on previous countrywide hydrological studies. From the hydrologic and physiographic parameters used in the regression analysis, the mean annual flood best explained the truncation level for all of the regions. Key words: flood, partial duration series, truncation level.

Monoamine Oxidase and Other Mitochondrial Enzymes in Density Subpopulations of Human Platelets

1988 ◽  
Vol 59 (01) ◽  
pp. 029-033 ◽  
Author(s):  
K G Chamberlain ◽  
D G Penington
Keyword(s):  
Monoamine Oxidase ◽  
Protein Concentration ◽  
Close Correlation ◽  
Human Platelets ◽  
Mitochondrial Enzymes ◽  
Density Fractions ◽  
Percoll Gradients ◽  
Normal Human ◽  
The Mean ◽  
Very High

SummaryNormal human platelets have been separated according to density on continuous Percoll gradients and the platelet distribution divided into five fractions containing approximately equal numbers of platelets. The mean volumes and protein contents of the platelets in each fraction were found to correlate positively with density while the protein concentration did not differ significantly between the fractions. Four mitochondrial enzymes (monoamine oxidase, glutamate dehydrogenase, cytochrome oxidase and NADP-dependent isocitrate dehydrogenase) were assayed and their activities per unit volume were found to increase in a very similar monotonie fashion with platelet density. When MAO and GDH were assayed on the same set of density fractions the correlation between the two activities was very high (r = 0.94–1.00, p <0.001) and a similar close correlation was found between MAO and ICDH. The results support the hypothesis that high density platelets either have a higher concentration of mitochondria or have larger mitochondria than low density platelets.

Tauchnitz for Translators. The Circulation of English-language Literature in Finland

2019 ◽  
Vol 16 (2-3) ◽  
pp. 161-179
Author(s):  
Outi Paloposki
Keyword(s):  
Foreign Language ◽  
English Language ◽  
Book History ◽  
Language Skills ◽  
Point Of View ◽  
Book Production ◽  
German Publisher ◽  
Language Literature ◽  
Selection Of

The article looks at book production and circulation from the point of view of translators, who, as purchasers and readers of foreign-language books, are an important mediating force in the selection of literature for translation. Taking the German publisher Tauchnitz's series ‘Collection of British Authors’ and its circulation in Finland in the nineteenth and early twentieth century as a case in point, the article argues that the increased availability of English-language books facilitated the acquiring and honing of translators' language skills and gradually diminished the need for indirect translating. Book history and translation studies meet here in an examination of the role of the Collection in Finnish translators' work.

COMBINATORIAL POLYNOMIALLY COMPUTABLE CHARACTERISTICS OF SUBSTITUTIONS AND THEIR PROPERTIES

2020 ◽  
Vol 7 (2) ◽  
pp. 34-41
Author(s):  
VLADIMIR NIKONOV ◽  
◽  
ANTON ZOBOV ◽  
Keyword(s):  
Mathematical Expectation ◽  
Point Of View ◽  
Small Range ◽  
Computational Point ◽  
Wide Range ◽  
Bijective Function ◽  
The Difference ◽  
Element Base ◽  
Selection Of

The construction and selection of a suitable bijective function, that is, substitution, is now becoming an important applied task, particularly for building block encryption systems. Many articles have suggested using different approaches to determining the quality of substitution, but most of them are highly computationally complex. The solution of this problem will significantly expand the range of methods for constructing and analyzing scheme in information protection systems. The purpose of research is to find easily measurable characteristics of substitutions, allowing to evaluate their quality, and also measures of the proximity of a particular substitutions to a random one, or its distance from it. For this purpose, several characteristics were proposed in this work: difference and polynomial, and their mathematical expectation was found, as well as variance for the difference characteristic. This allows us to make a conclusion about its quality by comparing the result of calculating the characteristic for a particular substitution with the calculated mathematical expectation. From a computational point of view, the thesises of the article are of exceptional interest due to the simplicity of the algorithm for quantifying the quality of bijective function substitutions. By its nature, the operation of calculating the difference characteristic carries out a simple summation of integer terms in a fixed and small range. Such an operation, both in the modern and in the prospective element base, is embedded in the logic of a wide range of functional elements, especially when implementing computational actions in the optical range, or on other carriers related to the field of nanotechnology.

DFT Benchmark Study of the O--O Bond Dissociation Energy in Peroxides Validated with High-Level Ab-Initio Calculations

2019 ◽  
Author(s):  
Danilo Carmona ◽  
Pablo Jaque ◽  
Esteban Vöhringer-Martinez
Keyword(s):  
Reference Value ◽  
Basis Set ◽  
Basis Sets ◽  
Mean Deviation ◽  
Bond Dissociation ◽  
Dissociation Energies ◽  
The Mean ◽  
Experimental Values ◽  
High Level ◽  
Almost All

<div><div><div><p>Peroxides play a central role in many chemical and biological pro- cesses such as the Fenton reaction. The relevance of these compounds lies in the low stability of the O–O bond which upon dissociation results in radical species able to initiate various chemical or biological processes. In this work, a set of 64 DFT functional-basis set combinations has been validated in terms of their capability to describe bond dissociation energies (BDE) for the O–O bond in a database of 14 ROOH peroxides for which experimental values ofBDE are available. Moreover, the electronic contributions to the BDE were obtained for four of the peroxides and the anion H2O2− at the CBS limit at CCSD(T) level with Dunning’s basis sets up to triple–ζ quality provid- ing a reference value for the hydrogen peroxide anion as a model. Almost all the functionals considered here yielded mean absolute deviations around 5.0 kcal mol−1. The smallest values were observed for the ωB97 family and the Minnesota M11 functional with a marked basis set dependence. Despite the mean deviation, order relations among BDE experimental values of peroxides were also considered. The ωB97 family was able to reproduce the relations correctly whereas other functionals presented a marked dependence on the chemical nature of the R group. Interestingly, M11 functional did not show a very good agreement with the established order despite its good performance in the mean error. The obtained results support the use of similar validation strategies for proper prediction of BDE or other molecular properties by DF Tmethods in subsequent related studies.</p></div></div></div>

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