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| 1 | Development tendencies of moulding and core sands显示文摘Further development of the technology for making moulding and core sands will be strictly limited by tough requirements due to protection of the natural environment. These tendencies are becoming more and more tense, so that we will reach a point when even processes, that from technological point of view fulfill high requirements of the foundry industry, must be replaced by more ecologically-friendly solutions. Hence, technologies using synthetic resins as binding materials will be limited. This paper presents some predictable development tendencies of moulding and core sands. The increasing role of inorganic substances will be noticed, including silicate binders with significantly improved properties, such as improved knock-out property or higher reclamation strength. Other interesting solutions might also be moulding sands bonded by geo-polymers and phosphate binders or salts and also binders based on degradable biopolymers. These tendencies and the usefulness of these binders are put forward in this paper. | Stanisaw M.Dobosz Petr Jelinek Katarzyna Major-Gabry | 2011 | China Foundry2011，8，4： | 11 |
| 2 | Germination of Chenopodium Album in Response to Microwave Plasma Treatment显示文摘The seeds of Lamb's Quarters(Chenopodium album agg.)were stimulated by low-pressure discharge.The tested seeds were exposed to plasma discharge for different time durations(from 6 minutes to 48 minutes).Germination tests were performed under specified laboratoryconditions during seven days in five identical and completely independent experiments.Significantdifferences between the control and plasma-treated seeds were observed.The treated seeds showedstructural changes on the surface of the seat coat.They germinated faster and their sproutaccretion on the first day of seed germination was longer.Germination rate for the untreatedseeds was 15% while it increased approximately three times(max 55%)for seeds treated byplasma from 12 minutes to 48 minutes. | Bo■ena ER Vitězslav STRA■K Michal ER■ Milan TICH■ Petr PATENKA | 2008 | Plasma Science and Technology2008，10，4： | 4 |
| 3 | Multiple haploids, triploids, and tetraploids found in modern-day “living fossil” Ginkgo biloba显示文摘Ginkgo biloba,the last extant representative of a lineage of Mesozoic gymnosperms,is one of the few seed plants with an exceptionally long(~300 Myr)evolutionary history free of genome-wide duplications(polyploidy).Despite this genome conservatism,we have recently found a viable spontaneous tetraploid Ginkgo sapling during routine screening of several plants,demonstrating that natural polyploidy is possible in Ginkgo.Here we provide a much wider flow cytometry survey of ploidy in some European Ginkgo collections,and own seedlings(>2200 individuals and~200 cultivars).We found a surprisingly high level of ploidy variation in modern-day Ginkgo and documented altogether 13 haploid,3 triploid,and 10 tetraploid Ginkgo plants or cultivars,most of them being morphologically distinct from common diploids.Haploids frequently produced polyploid(dihaploid)buds or branches.Tetraploids showed some genome size variation.The surveyed plants provide a unique resource for future Ginkgo research and breeding,and they might be used to accelerate the modern diversification of this nearly extinct plant lineage. | PetrŠmarda Lucie Horová Ondřej Knápek Heidi Dieck Martin Dieck Katarína Ražná Pavel Hrubík Laszlo Orlóci Laszlo Papp Kristýna Veselá Pavel Veselý Petr Bureš | 2018 | Horticulture Research2018，5，1： | 4 |
| 4 | Sensitivity analysis of parameters and contrasting performance of ground filtering algorithms with UAV photogrammetry-based and LiDAR point clouds显示文摘Most ground filtering algorithms are primarily designed for airborne LiDAR point cloud processing and their successful use in identifying ground points from photogrammetric point clouds remains questionable.We compared six ground filtering algorithms implemented in Metashape,ArcGIS,CloudCompare,LAStools,and PDAL.We used UAV photogrammetry-based(acquired under leaf-off conditions)and airborne LiDAR(leaf-on)point clouds of the same area to:(i)compare accuracy of generated DTMs;(ii)evaluate the effect of vegetation density and terrain slope on filtering accuracy;and(iii)assess which algorithm parameters have the greatest effect on the filtering accuracy.Our results show that the performance of filtering algorithms was affected by the point cloud type,terrain slope and vegetation cover.The results were generally better for LiDAR(RMSE 0.13–0.19 m)than for photogrammetric(RMSE 0.19–0.23 m)point clouds.The behavior in varying vegetation and terrain conditions was consistent for LiDAR point clouds.However,when applied on photogrammetric point clouds,the algorithms’behavior was inconsistent,especially in areas of steep slope(except for the Progressive Triangulated Irregular Network in LAStools).Parameters related to the selection of the initial minimum elevation ground points were the most influential in all algorithms and point clouds. | Petr Klápště Michal Fogl Vojtěch Barták Kateřina Gdulová Rudolf Urban Vítězslav Moudrý | 2020 | International Journal of Digital Earth2020，13，12： | 2 |
| 5 | Analogue Realizations of Fractional-Order Controllers显示文摘 | I. Podlubny I. Petrá? B. M. Vinagre P. O’Leary ?. Dor?ák | 2002 | Nonlinear Dynamics (-)2002，，1： | 1 |
| 6 | Microcalorimetric Measurements of the Solvent Contribution to the Entropy Changes upon Electrochemical Lithium Bulk Deposition<link href='#nss'/>显示文摘 | Matthias J. Schmid Katrin R. Bickel Petr Novák Rolf Schuster | 2013 | Angew Chem Int Ed2013，，50： | 1 |
| 7 | Sur I' equation de Pell 显示文摘 | PETR K | 1927 | Casopis Pest Mat Fys1927，56，1： | 1 |
| 8 | Planar near-field to far-field transfomm-tion using an array of dipole probes显示文摘 | Petre P Sarkar T K | 1994 | IEEE Transactions on Antennas and Propagation1994，42，4： | 1 |
| 9 | Photocatalytic activity of sol-gel TiO2 thin films deposited on soda lime glass and soda lime glass precoated with a SiO2 layer显示文摘 | Petr Novotna Josef K | 2010 | SugCace&Coatings Technology2010，204，： | 1 |
| 10 | Sur l'equation de Pell显示文摘 | PETR K | 1927 | Casopis Pest Mat Fys1927，56，1： | 1 |
| 11 | Planar near-field to far-field transfor- mation using an equivalent magnetic curt'cut approach 显示文摘 | Petre P Sarkar T K | 1992 | IEEE Transactions on Antennas and Propagation1992，40，11： | 1 |
| 12 | Data-driven Soft Sensors in the process industry显示文摘 | Petr K Bogdan G Sibylle S | 2009 | Computers and Chemical Engineering2009，33，4： | 1 |
| 13 | Degradation of cellulose by basidiomycetous fungi 显示文摘 | PETR BALDRIAN V V K | 2008 | FEMS Microbiol Rev2008，32，3： | 1 |
| 14 | Accumulation of heavy metals using Sorghum sp.显示文摘 | Petr Soudek ?arka Petrová Radomíra Vaňková Jing Song Toma? Vaněk | 2013 | Chemosphere2013，，： | 1 |
| 15 | Study of fungal degradation products of polycyclic aromatic hydrocarbons using gas chromatography with ion trap mass spectrometry detection 显示文摘 | Cajthaml T Moder M P Petr K | 2002 | Journal of Chromatography2002，974，： | 1 |
| 16 | On the limits of applicability of spectrophotometer and spectrofluorime tricmethods for the determination of chlorophyll alb ratio 显示文摘 | ROMAN K PETR I JAN N | 1999 | Photo synth Res1999，，62： | 1 |
| 17 | Occurrence of Fusarium spe- cies and trichothecenes in Nigerian maize显示文摘 | TIMOTHY O A URSULA H PETR K | 2007 | International Journal of Food Microbiology2007，116，3： | 1 |
| 18 | Role of zearalenone lactonase in p rotection ofgliocladium roseum from fungitoxic effects of the mycotoxinzearalenone显示文摘 | Jan U Petr K | 2007 | Applied and Enviromnental Microbiology2007，73，2： | 1 |
| 19 | Data - driven soft sensors in the process industry显示文摘 | Petr K Bogdan G Sibylle S | 2009 | Computers and Chemical Engi- neering2009，33，4： | 1 |
| 20 | Variceal bleeding in portal hypertension: bacterial infection and comparison of efficacy of intravenous and per-oral application of antibiotics – a randomized trial显示文摘 | Jan Lata Jana Juránková Libu?e Husová Michal ?enky?ík Petr Dítě Milan Dastych Veronika P?íbramská Radek Kroupa | 2005 | European Journal of Gastroenterology & Hepatology2005，，10： | 1 |
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