Search results for "MAS"
showing 10 items of 18047 documents
Review: Mass spectrometry of surfactant aggregates
2011
In contrast with the enormous amount of literature produced during many decades in the field of surfactant aggregation in liquid, liquid crystalline and solid phases, only a few investigations concerning surfactant self-assembling in the gas phase as charged aggregates have been carried out until now. This lack of interest is disappointing in view of the remarkable theoretical and practical importance of the inherent knowledge. The absence of surfactant–solvent interactions makes it easier to study the role of surfactant–surfactant forces in determining their peculiar self-assembling features as well as the ability of these assemblies to incorporate selected solubilizate molecules. Thus, th…
Sustainable Fertilization in Medicinal and Aromatic Plants
2015
The nutrient level in the soil is one of the most investigated aspects of agricultural research, also including research into Medicinal and Aromatic plants. The effect of fertilization has been studied in detail for many species, with contrasting results as concerns above all the qualitative aspects of production. Generally speaking, an increased level of nutrients induces an enhancement of plant biomass, but when the goal of cultivation is different from herbage yield, i.e. when a special plant part (seeds, or roots, or flowers) is of interest, or when the quality features are especially important, the outcome of fertilization may be dramatically different. A fine-tuned fertilization pract…
Management diversification increases habitat availability for multiple biodiversity indicator species in production forests
2022
Context Forest biodiversity is closely linked to habitat heterogeneity, while forestry actions often cause habitat homogenization. Alternative approaches to even-aged management were developed to restore habitat heterogeneity at the stand level, but how their application could promote habitat diversity at landscape scale remains uncertain. Objectives We tested the potential benefit of diversifying management regimes to increase landscape-level heterogeneity. We hypothesize that different styles of forest management would create a diverse mosaic of forest habitats that would in turn benefit species with various habitat requirements. Methods Forest stands were simulated under business-as-usua…
Novērtējumu kļūdu analīze neatbildētības gadījumā
2015
Darba tēma ir "Novērtējumu kļūdu analīze neatbildētības gadījumā". Neatbildētība ir ļoti aktuāla problēma ar kuru saskarās visos apsekojumos. Darbā tiek izpētīts neatbildētības teorētiskais pamats, aplūkota neatbildētības ietekme uz novērtējuma precizitāti un iespējas šo ietekmi samazināt. Lai apstiprinātu teorētiskos apgalvojumus par neatbildētības ietekmi darbā dažādiem novērtējumiem tiek rēķinātas vidējās kvadrātiskās kļūdas atbildējušo respondentu, neatbildējušo respondentu daļām un populācijas kopumam. Ar praktisku piemēru tiek parādīts, ka ar svaru sistēmas korekcijas palīdzību tiek palielināta novērtējumu precizitāte (samazināta neatbildētības ietekme).
Quality-control procedure for dry-process rubberised asphalt mastics
2019
Crumb Rubber (CR) can be incorporated into asphalt mixes via the dry process by directly adding CR into the mixer together with other asphalt mixture’s components, or with the wet process where the CR is used as a bitumen modifier. While the wet process allows an accurate monitoring of the interaction between CR and bitumen, the lack of control represents a main issue in the dry process. In fact, in the latter the CR particles keep swelling during hauling and possibly also after paving operations, often causing workability issues and premature failures. This study wants to provide a methodology that could help quality control procedures of bitumen/filler/rubber systems during mixing, haulin…
Control of the Development of Swirling Airflow Dynamics and Its Impact on Biomass Combustion Characteristics
2017
Abstract The development of the swirling flame flow field and gasification/ combustion dynamics at thermo-chemical conversion of biomass pellets has experimentally been studied using a pilot device, which combines a biomass gasifier and combustor by varying the inlet conditions of the fuel-air mixture into the combustor. Experimental modelling of the formation of the cold nonreacting swirling airflow field above the inlet nozzle of the combustor and the upstream flow formation below the inlet nozzle has been carried out to assess the influence of the inlet nozzle diameter, as well primary and secondary air supply rates on the upstream flow formation and air swirl intensity, which is highly …
Diaboliskie spēki Raiņa dramaturģijā
2013
Elektroniskā versija nesatur pielikumus
An explicit unconditionally stable numerical solution of the advection problem in irrotational flow fields
2004
[1] A new methodology for the Eulerian numerical solution of the advection problem is proposed. The methodology is based on the conservation of both the zero- and the first-order spatial moments inside each element of the computational domain and leads to the solution of several small systems of ordinary differential equations. Since the systems are solved sequentially (one element after the other), the method can be classified as explicit. The proposed methodology has the following properties: (1) it guarantees local and global mass conservation, (2) it is unconditionally stable, and (3) it applies second-order approximation of the concentration and its fluxes inside each element. Limitati…
Sliding mode exponential H<inf>&#x221E;</inf> synchronization of Markovian jumping master-slave systems with time-delays and nonlinea…
2011
This paper investigates the problem of exponential H ∞ synchronization for a class of master-slave systems with both discrete and distributed time-delays, norm-bounded nonlinear uncertainties and Markovian switching parameters. Using an appropriate Lyapunov-Krasovskii functional, some delay-dependent sufficient conditions and a synchronization law which include the master-slave parameters are established for designing a delay-dependent mode-dependent sliding mode exponential H ∞ synchronization control law in terms of linear matrix inequalities. The controller guarantees the H ∞ synchronization of the two coupled master and slave systems regardless of their initial states. A numerical examp…
Fraudulent conveyance in Poland - actio Pauliana
2017
Obecny model zaskarżania czynności prawnej upadłego, określony w przepisach ustawy Prawo upadłościowe z 2003r., część pierwsza, dział 3- Bezskuteczność i zaskarżanie czynności upadłego,jest zbliżony do pierwowzoru rzymskiego przypisywanego pretorowi L.A. Paulianowi. Okres pełnienia stanowiska pretora przez L.A. Pauliana przypadał na 191 r. p.n.e., ale samo określenie actio pauliana pojawia się wiele setek lat później w Digestach. Ustawodawca polski zwiększa skuteczność ochrony realizowanej z wykorzystaniem tzw. prawa zaskarżania według art. 131 p.u. w zw. z art. 527 i n. k.c. Skarga pauliańska według przepisów art. 527 i n. k.c. służy ochronie zapobiegliwego wierzyciela, który wystąpił z po…