Floristic characteristics of Austrian pine and Scots pine forests on serpentine and peridotites in western and central Serbia

U radu su proučene florističke karakteristike šumskih fitocenoza crnog (Pinus nigra Arnold) i belog bora (Pinus sylvestris L.) u Srbiji, kao i ekološki uslovi u kojima se nalaze proučavane zajednice. Za područje istraživanja je odabrano pet lokaliteta: Tara, Šargan, Zlatibor i Pešter, koji se nalaze u zapadnoj Srbiji, kao i Kopaonik, koji je smešten u centralnoj Srbiji. Od ekoloških karakteristika staništa proučene su: klimatske, orografske, geološka podloga i zemljišta. Na osnovu klimatskih podataka određene su opšte odlike klime istraživanih područja i izračunati sledeći parametri: bioklimatska klasifikacija po Lang-u i Kepen-u, hidrički bilans po Torntvajt-u, Kernerov stepen kontinentalnosti i De Martonov indeks suše. Na istraživanim lokalitetima, prema Langovoj bioklimatskoj klasifikaciji, klima je humidna, kao i prema Torntvajtovoj klasifikaciji. To je tipično šumsko područje gde voda stalno otiče, a šume se nalaze u optimalnim klimatskim uslovima za rast i razvoj. Geološka podloga istraživanih područja je ista na svim lokalitetima, a nju čine serpentinit, peridotiti i serpentinisani peridotiti. Analiza je pokazala prisustvo sledećih tipova zemljišta na istraživanim lokalitetima: eutrično humusno silikatno zemljište (ranker) na serpentinitu, posmeđeno eutrično humusno silikatno zemljište na serpentinitu i eutrično smeđe zemljište na serpentinitu. U okviru ovih tipova izdvojeno je nekoliko varijeteta i formi. Na području Zlatibora, Tare, Šargana, Peštera i Kopaonika opisane su tri šumske fitocenoze: Erico-Pinetum nigrae Krause 1957, Pinetum sylvestris-nigrae Pavlović 1951 i Erico-Pinetum sylvestris Stefanović 1963. Sve tri zajednice pripadaju svezi Orno-Ericion Horvat 1959, redu Erico-Pinetalia Oberdorfer 49 emend. Ht 1959 i razredu Erico-Pinetea Ht 1959. Fitocenološke karakteristike istraživanih sastojina su utvrđene na osnovu 95 fitocenoloških snimaka koji su uzeti standardnim metodom Braun Blankea (Braun Blanquet-a). Fitocenološki snimci su uzimani u tri aspekta: rano proleće, prelaz proleće-leto i u leto. Na bazi florističkog sastava izdvojene su subasocijacije i izračunati su indeksi diverziteta i izjednačenosti...Floristic characteristics of forest plant communities of Austrian pine (Pinus nigra Arnold) and Scots pine (Pinus sylvestris L.) in Serbia, as well as ecological condition in which these communities grow were studied in this research. Five localities where chosen for this research: Tara, Šargan, Zlatibor and Pešter, which are situated in western Serbia, as well as Kopaonik, which is situated in central Serbia. Researched ecological site characteristics are: climate, orographic conditions, geologic bedrocks and soils. Common climate characteristics were established based on meteorological data and following parameters were calculated: bioclimatic classification according to Lang and Keppen, Thornthwaite's climate index, climate continentality level and De Martonne aridity index. Climate is humid, according to Lang, as well as according to Thornthwaite's climate index. It is tipical forest area where water constantly flows, and forests are situated in optimal climate conditions for growth and development. Geologic bedrock is the same on every locality, composed of serpentine, peridotites and serpentinized peridotites. Next soil types are described according to analysis: eutric humus-siliceous soil (ranker) on serpentine, brownised eutric humussiliceous soil on serpentine and eutric brown soil on serpentine. Several types and forms are described within these types. In the region of Zlatibor, Tara, Šargan, Pešter and Kopaonik, three forest plant communities are identified: Erico-Pinetum nigrae Krause 1957, Pinetum sylvestrisnigrae Pavlović 1951 and Erico-Pinetum sylvestris Stefanović 1963. These plant communities belong to allience Orno-Ericion Horvat 1959, order Erico-Pinetalia Oberdorfer 49 emend. Ht 1959 and class Erico-Pinetea Ht 1959. Phytocoenological characteristics of the analyzed stands were determinated by taking 95 phytocoenological relevés using the standard metod of Braun Blanquet. Phytocoenological relevés were taken in three vegetation aspects: early spring, spring-summer and summer..

Supplementary data for the article: Božić, A. R.; Bjelogrlić, S. K.; Novaković, I. T.; Filipović, N. R.; Petrović, P. M.; Marinković, A. D.; Todorović, T. R.; Cvijetić, I. N. Antimicrobial Activity of Thiocarbohydrazones: Experimental Studies and Alignment-Independent 3D QSAR Models. ChemistrySelect 2018, 3 (7), 2215–2221. https://doi.org/10.1002/slct.201702691

Supplementary material for: [https://doi.org/10.1002/slct.201702691]Related to published version: [http://cherry.chem.bg.ac.rs/handle/123456789/2094

MODELING, SIMULATION AND ENERGY EFFICIENCY DETERMINATION OF A PNEUMATIC PRESSURE AMPLIFIER

In order to increase energy efficiency of a pneumatic system the compressed air discharged from pneumatic actuator is being collected. In those conditions, the air contains a certain amount of energy and can be used at the points  that require a lower level of pressure for their operations. If the collected air can not be directly returned and used in a pneumatic system, then the air pressure is increased by using pressure intensifier which is known in the commercial use as pneumatic booster. For that operation, the booster uses  and consumes a part of the collected air. In this paper we analyze the dynamic behavior of a pressure booster  and calculate its energy efficiency by using mathematical modeling and simulation in Simulink. The model of one pneumatic booster and its energy efficiency is verified by conducted experimental testing

Supplementary data for the article: Božić, A.; Marinković, A.; Bjelogrlić, S.; Todorović, T. R.; Cvijetić, I. N.; Novaković, I.; Muller, C. D.; Filipović, N. R. Quinoline Based Mono- and Bis-(Thio)Carbohydrazones: Synthesis, Anticancer Activity in 2D and 3D Cancer and Cancer Stem Cell Models. RSC Advances 2016, 6 (106), 104763–104781. https://doi.org/10.1039/c6ra23940d

Supplementary material for: [https://doi.org/10.1039/c6ra23940d]Related to published version: [http://cherry.chem.bg.ac.rs/handle/123456789/2352

EURRECA nutritional planning and dietary assessment software tool: NutPlan

Background/Objectives: 'NutPlan' is developed within the EURRECA Network of Excellence (EURopean micronutrient RECommendations Aligned (http://www.eurreca.org). It is a user-friendly software programme with multiple functions: individual and group nutrition planning, recipe calculation, creating food labels, diet planning and nutrient intake assessment. This paper describes the newly developed software and its features. Subjects/Methods: 'NutPlan' contains the following databases: foods, dish recipes, meals, menus, average menus and glossary. These databases enable diet planning and diet analysis by comparing foods, dishes, meals or menus with currently available nutritional recommendations accessible by a link to EURRECA tool Nutri-RecQuest to meet individual/group nutritional needs. The software is upgraded by inserting new items (for example, foods, dishes, meals) and for a connection to other software programmes, thus allowing more advanced calculations to be completed. Conclusion: 'NutPlan' might be the software of choice for individual and group diet planning. It is aimed particularly at Eastern European and West Balkan countries, which currently lack dietary software. It is envisaged for use by small and medium enterprises in the food industry, as well as by health professionals, researchers and policy makers, and can be recommended for educational purposes. Given its characteristics of being upgraded to include new country-specific food data/database, it can be recognized as an important tool in nutritional capacity development in the Central Eastern European and other regions. European Journal of Clinical Nutrition (2010) 64, S38-S42; doi:10.1038/ejcn.2010.5

A GPU-based hyperbolic SVD algorithm

A one-sided Jacobi hyperbolic singular value decomposition (HSVD) algorithm, using a massively parallel graphics processing unit (GPU), is developed. The algorithm also serves as the final stage of solving a symmetric indefinite eigenvalue problem. Numerical testing demonstrates the gains in speed and accuracy over sequential and MPI-parallelized variants of similar Jacobi-type HSVD algorithms. Finally, possibilities of hybrid CPU--GPU parallelism are discussed.Comment: Accepted for publication in BIT Numerical Mathematic

Unconventional order/disorder behaviour in Al–Co–Cu–Fe–Ni multi-principal element alloys after casting and annealing

The effect of Cu concentration on the order/disorder behaviour of the AlCoCuxFeNi (x = 0.6 to 3.0) multi-principal element alloys was investigated. BCC and/or FCC phases were observed in the microstructures of the alloys after casting and annealing at 1050 ◦C followed by slow cooling. Interesting is that the alloys form ordered structures after casting and disordered structures after annealing and slow cooling, while the opposite would be expected. The ordering in the as-cast state is explained by the strong affinity of Al to transition metals, which results in the formation of supercell structures having sublattices occupied by certain elements only. Disordering after annealing has two reasons. Either the phase is composed of nearly pure element (Cu) and is disordered by default or it is composed of randomly distributed nano-segregated regions within a single phase resulting in a uniform distribution of all elements in the sublattices and therefore appearing to be macroscopically disordered. The reason for the formation of such nano-segregated areas might reside in the reduction of Gibbs free energy due to the annealing by the interplay between enthalpy and entropy

Supplementary data for article : Kolarević, S.; Milovanović, D.; Kračun-Kolarević, M.; Kostić, J.; Sunjog, K.; Martinović, R.; Đorđević, J.; Novaković, I.; Sladić, D.; Vuković-Gačić, B. Evaluation of Genotoxic Potential of Avarol, Avarone, and Its Methoxy and Methylamino Derivatives in Prokaryotic and Eukaryotic Test Models. Drug and Chemical Toxicology 2019, 42 (2), 130–139. https://doi.org/10.1080/01480545.2017.1413108

Supplementary material for: [https://doi.org/10.1080/01480545.2017.1413108]Related to published version: [http://cherry.chem.bg.ac.rs/handle/123456789/322