Autor: Strauss, P. - Prolib Integro

Skocz do pozycji: 1.

Tytuł:: Metoda analizy kosztów całkowitych pojazdu w okresie jego użytkowania
Autorzy:: Strauss, P.
Tematy:: eksploatacja kolei
model LCC Kolei Niemieckich
narzędzia menażerskie
pociąg BR 628; Pokaż więcej
Wydawca:: Instytut Naukowo-Wydawniczy TTS
Powiązania:: https://bibliotekanauki.pl/articles/251881.pdf Link otwiera się w nowym oknie
Opis:: Decyzje inwestycyjne dotyczące zakupu nowoczesnych pojazdów wymagają wcześniejszego technicznego rozeznania oferty rynkowej i wykonania analizy kosztów pojazdów. Aby na podstawie prognozy kosztów cyklu życia (Life Cycle Cost - LCC) uzyskać korzyści o wymiarze ekonomicznym, wymagana jest praca z odpowiednim modelem, który w prognozie kosztów zgodnie odzwierciedlałby takie techniczne właściwości produktów, jak np.: niezawodność, stopień dyspozycyjności, łatwość utrzymania pojazdu w dobrym stanie technicznym, bezpieczeństwo (reliability, Availability, Maintainability, Safety-RAMS). Model taki musi służyć jako narzędzie menażerskie, musi więc przedstawiać dane i fakty w takiej zależności, aby na ich podstawie możliwe było podejmowanie strategicznych rozstrzygnięć decydujących o inwestycjach w zakresie kupna nowych pojazdów.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Detection of physical hazards in soil profiles using quantitative soil physical quality assessment in the Pannonian basin, Eastern Austria
Autorzy:: Weninger, T.
Kampiner, E.
Dostal, T.
Spiegel, A.
Strauss, P.
Tematy:: tillage intensity
soil compaction
soil water balance
soil management; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Powiązania:: https://bibliotekanauki.pl/articles/2082964.pdf Link otwiera się w nowym oknie
Opis:: Reliable estimations of soil physical quality provide valuable information for the evaluation and advancement of agricultural soil management strategies. In the agriculturally highly productive Pannonian basin in Eastern Austria, little emphasis has been placed on the determination of soil physical quality and corresponding soil degradation risks. Nevertheless, ongoing climate change, especially prolonged drought periods and higher rainfall intensity, will raise the need for appropriate soil management strategies. Soil physical quality was therefore assessed in nine soil profiles in a long-term tillage experiment which has been in operation since 1988 in Eastern Austria. Soil samples from depths of between 2 and 37 cm and under three different tillage systems (conventional, reduced and minimal tillage) were analysed for various indicators of soil physical quality. The resulting classifications of soil physical quality in the different profiles were compared qualitatively and quantitatively together with an estimation concerning the representativeness of the soil physical quality indicators used. The outcomes showed severe soil compaction under all tillage treatments and slight improvements in soil physical quality marginally above the working depth for the different treatments. Additionally, conversion to conservation tillage led to less pronounced improvements in soil physical quality under Pannonian conditions than have been reported in more humid climates.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Characterisation of soil aggregate stability by ultrasonic dispersion
Autorzy:: Mentler, A.
Mayer, H.
Strauss, P.
Blum, W.E.H.
Tematy:: ultrasonic dispersion
soil aggregate
soil particle dispersion
aggregate stability; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Powiązania:: https://bibliotekanauki.pl/articles/24609.pdf Link otwiera się w nowym oknie
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: Influence of soil tillage and erosion on the dispersion of glyphosate and aminomethylphosphonic acid in agricultural soils
Autorzy:: Rampazzo Todorovic, G.
Rampazzo, N
Mentler, A.
Blum, W.E.H.
Eder, A.
Strauss, P.
Tematy:: soil tillage
soil erosion
dispersion
glyphosate
aminomethylphosphonic acid
agricultural soil
soil
adsorption; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Instytut Agrofizyki PAN
Powiązania:: https://bibliotekanauki.pl/articles/26409.pdf Link otwiera się w nowym oknie
Opis:: Erosion processes can strongly influence the dissipation of glyphosate and aminomethylphosphonic acid applied with Roundup Max in agricultural soils; in addition, the soil structure state shortly before erosive precipitations fall can be a key parameter for the distribution of glyphosate and its metabolite. Field rain simulation experiments showed that severe erosion processes immediately after application of Roundup Max can lead to serious unexpected glyphosate loss even in soils with a high presumed adsorption like the Cambisols, if their structure is unfavourable. In one of the no-tillage-plot of the Cambisol, up to 47% of the applied glyphosate amount was dissipated with surface run-off. Moreover, at the Chernozem site with high erosion risk and lower adsorption potential, glyphosate could be found in collected percolation water transported far outside the 2x2 m experimental plots. Traces of glyphosate were found also outside the treated agricultural fields.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Semiconductor Cavity Quantum Electrodynamics with Single Quantum Dots
Autorzy:: Reitzenstein, S.
Schneider, C.
Münch, S.
Kistner, C.
Strauss, M.
Huggenberger, A.
Franeck, P.
Weinmann, P.
Kamp, M.
Höfling, S.
Worschech, L.
Forchel, A.
Tematy:: 73.21.La
71.35.Ji
71.55.Eq
37.30.+i; Pokaż więcej
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Powiązania:: https://bibliotekanauki.pl/articles/1791177.pdf Link otwiera się w nowym oknie
Opis:: This paper summarizes recent progress achieved in the field of semiconductor cavity quantum electrodynamics with single quantum dots with the focus being on micropillar cavities. Light-matter interaction both in the strong and weak coupling regime is presented. Resonance tuning of the quantum dot by temperature, electric fields and magnetic fields is demonstrated while the strong coupling regime can be reached. Additionally, deterministic device integration of single positioned quantum dots is reported by a combination of site controlled quantum dot growth via directed nucleation and subsequent device alignment to overcome the degree of randomness of the quantum dot position in so far most common quantum dot-cavity systems.
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Impact of FTO genotypes on BMI and weight in polycystic ovary syndrome : a systematic review and meta-analysis
Autorzy:: Straczkowski, M.
Lerchbaum, E.
Ewens, K. G.
Vcelak, J.
Wojciechowski, Piotr
Małecki, Maciej
Obermayer-Pietsch, B.
Lipowska, A.
Franks, S.
Tan, S.
Goodarzi, M. O.
Bendlova, B.
Kowalska, I.
Strauss III, J. F.
Barber, T. M.
Lukasova, P.
Attaoua, R.
Hinney, A.
Ryś, P.
McCarthy, M. I.
Azziz, R.
Grigorescu, F.
Opis:: Aims/hypothesis FTO gene single nucleotide polymorphisms (SNPs) have been shown to be associated with obesity-related traits and type 2 diabetes. Several small studies have suggested a greater than expected effect of the FTO rs9939609 SNP on weight in polycystic ovary syndrome (PCOS). We therefore aimed to examine the impact of FTO genotype on BMI and weight in PCOS. Methods A systematic search of medical databases (PubMed, EMBASE and Cochrane CENTRAL) was conducted up to the end of April 2011. Seven studies describing eight distinct PCOS cohorts were retrieved; seven were genotyped for SNP rs9939609 and one for SNP rs1421085. The per allele effect on BMI and body weight increase was calculated and subjected to meta-analysis. Results A total of 2,548 women with PCOS were included in the study; 762 were TT homozygotes, 1,253 had an AT/CT genotype, and 533 were AA/CC homozygotes. Each additional copy of the effect allele (A/C) increased the BMI by a mean of 0.19 z score units (95% CI 0.13, 0.24; p = 2.26 × 10−11) and body weight by a mean of 0.20 z score units (95% CI 0.14, 0.26; p = 1.02 × 10−10). This translated into an approximately 3.3 kg/m2 increase in BMI and an approximately 9.6 kg gain in body weight between TT and AA/CC homozygotes. The association between FTO genotypes and BMI was stronger in the cohorts with PCOS than in the general female populations from large genome-wide association studies. Deviation from an additive genetic model was observed in heavier populations. Conclusions/interpretation The effect of FTO SNPs on obesity-related traits in PCOS seems to be more than two times greater than the effect found in large population-based studies. This suggests an interaction between FTO and the metabolic context or polygenic background of PCOS.
Dostawca treści:: Repozytorium Uniwersytetu Jagiellońskiego